Production Calculations 2021/22
Production highlights and tables for the 2021/22 were included in the recent Ayrshire Bulletin. This is the first season that Production information has been sourced via BreedIT, the new Breed Society platform. BreedIT is sourcing all data for this reporting from DIGAD (Dairy Industry Good Animal Database). While DairyNZ sources all raw data from the herd testing companies, they then apply the ICAR Cattle Milk Recording guidelines https://www.icar.org/index.php/icar-recording-guidelines/. This means that the calculated lactation records including DIM (and therefore herd averages and indexes) will look different to what members are seeing on their MINDA records. The expectation is that when NZAEL 3.5 (inclusion of genomics for females) is implemented later in 2023, the data will look a lot more alike.
While the reported data does not match members MINDA records, as the data is calculated in a consistent manner rankings of animals and herds are not affected. We apologise that this was not clarified further in the Bulletin.
Pam Goodin | General Manager